2015 AUDI S3 inflation pressure

246 Tires and wheels
The tire pressure label on your sures. Check all of the tires and
Audi lists the recommended be sure not to forget the spare cold tire inflation pressures at tire. If the pressure in any tire is
maximum capacity for the new, too high when the tire is "cold,"
original equipment tires that let air out of the tire slowly
were on your vehicle at the time with the edge of the tire gauge
it was manufactured. For the and keep checking the pressure
location of the label until you reach the pressure
¢ page 240, fig. 168. that is correct for the load (pas-
Most tires lose air naturally sengers and luggage) and
kind
over time. They can also lose of driving you plan to do.
some air if you drive over a pot- If the pressure in any tire is too
hole or hit a curb while parking. low, note the difference be-
It is usually not possible to see tween the pressure in the cold
whether the radial tires used tire and the pressure you need
today are underinflated just by and add the air that you need to
looking at them. reach the correct pressure for
Therefore, be sure to check tire the vehicle
load (passengers
pressures at least once a month and luggage) for the tires on
and always before going on a your vehicle as listed on the on
long trip. Make sure to take the your vehicle and in this manual
number of people and the and the kind of driving you plan
amount of luggage into ac- to do.
count when adjusting tire pres-
Never exceed the maximum in-
sure for a trip -even one that flation pressure listed on the
you would not consider to be tire sidewall for any reason.
"long." See ¢page 249, Tires Remember that the vehicle
and vehicle load limits for more
manufacturer, not the tire man-
important information. ufacturer, determines the cor-
Always use an accurate tire rect tire pressure for the tires pressure gauge when checking on your vehicle.
..
and adjusting inflation pres-

Tires and wheels 24 7
It is important to check the tire sure for the spare wheel
pressure when the tires are
¢page 268.
cold.
When should I adjust the
-Read the required tire pres-tire pressures?
'
sure from the tire pressure la-
Adjust the tire pressure to the •
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bel. The tire pressure label is load you are carrying. After
located on the driver's side B- changing a wheel
or replacing
pillar. wheels you have to adjust the
-Turn the valve stem cap coun- tire pressures on all wheels. In
ter-clockwise to remove it addition, you must then store
from the tire valve. the new tire pressures in the
-Place the air pressure gauge tire pressure monitoring sys-
on the valve. tern
¢ page 264.
-The tire pressures should only
A WARNING
be checked and adjusted when
Incorrect tire pressures and/
the tires are cold . The slightly
or underinflation can lead
raised pressures of warm tires
sudden tire failure, loss of
must not be reduced.
control, collision, serious per-
-Adjust the tire pressure to the
sonal injury or even death.
load you are carrying.
-When the warning symbol
-Reinstall the valve stem cap
RI] appears in the instru-
on the valve.
ment cluster, stop and in-
When should I check the tire spect the tires.
pressure? -Incorrect tire pressure and/
The correct tire pressure is es- or underinflation can cause
pecially important at high increased tire wear and can
speeds. The pressure should affect the handling of the
therefore be checked at least vehicle and stopping ability.
once a month and always be- -Incorrect tire pressures
fore start ing a journey. Do not
and/or underinflation can
' • M N
forget to check the tire pres-0 > co .... \!) 1.1'1
M 1.1'1 ....

M N
0 > co ,...., \!) 1.1'1
M 1.1'1 ,....,
KG OR XXX LBS" on your ve­
hicle's placard (tire inflation
pressure label)
c:> page 240,
fig. 168.
2. Determine the combined
weight of the driver and pas­ sengers that will be riding in
your vehicle.
3 . Subtract the combined
weight of the driver and pas­ sengers from
"XXX" kilo ­
grams or
"XXX" pounds
shown on the sticker
c:> page 240 , fig. 168.
4. The resulting figure equals
the available amount of car­
go and luggage load capaci­
ty. For example, if the "XXX"
amount equals 1400 lbs.
and there will be five 150 lbs. passengers in your vehi­
cle, the amount of available
cargo and luggage load ca­
pacity is 650 lbs. (1400-750 (5
X 150) = 650 lbs.)
5. Determine the combined weight of luggage and cargo being loaded on the vehicle.
That weight may not safely
exceed the available cargo
and luggage load capacity
calculated in Step 4.
Tires and wheels 251
6. If your vehicle will be towing a trailer, load from your trail­
er will be transferred to your
vehicle. Consult this manual
to determine how this re­
duces the available cargo
and luggage load capacity of
your vehicle.
~check the tire sidewall
(¢ page 254, fig . 172) to de­
termine the designated load rating for a specific tire.
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258 Tires an d whee ls
tires because they meet the
h ighest standards regarding
safety and driving characteris ­
tics when used correctly. Your
authorized Audi dealer w ill
g ladly provide you with more
information.
Tire ply composition and materials used
T he number of plies indicates
the number of layers of rubber­
coated fabric in the tire. In gen­
eral, the greater the number of
plies , the more weight a tire
can support . Tire manufactur­
ers also must indicate the ma­
ter ia ls in the tire, wh ich include
steel, nylon, polyester, and oth­
ers .
Maximum Load Rating
This number indicates the max­
imum load in kilograms and
pounds that can be carried by
the tire.
Tire quality grading for
treadwear, traction, and
temperature resistance
Tread wear, trac tion and tem­
perature grades
¢ page 260.
Maximum Permissible
Inflation Pressure
T his number is the g reatest
amount of air pressure that should ever be put in the tire
under normal driv ing condi­
tions.
A WARNING
-Using incorrect or unmatch­ ed tires and/or wheels or
improper t ire and wheel
combinations can lead to loss of control , collision and
ser ious personal injury.
-Always use tires, rims and
wheel bolts that meet the
specifications of original
factory-installed tires o r
other combinations that
have been specifically ap ­
proved by the vehicle manu­
facturer.
- Tires age even if they a re
not being used and can fail
sudden ly, especially at high
speeds. Tires that a re more
than 6 years old can on ly be
used in an eme rgency and
then with special care and
at lower speeds.
-Never mount used tires on
your vehicle if you are no t

M N
0 > co ,...., \!) 1.1'1
M 1.1'1 ,....,
In certain circumstances, you may not use
wheel bo lts from a different vehicle -
even if it
i s the same mode l
Q page 291.
A WARNING
Improperly tightened or maintained wheel
bolts can become loose caus ing loss of
control, a collision and ser ious personal in­
jury .
- Always keep the wheel bolts and the
threads in the wheel hubs clean so the
wheel bolts can turn easily and be prop­
erly t ightened.
- Never grease or oil the wheel bolts and
the threads in the wheel hubs. They can
become loose w hile d riving if greased or
o iled,
even if tightened to the spec ified
torq ue.
- Only use wheel bo lts that belong to the
rim being ins talled.
- Never use different whee ls bolts on your
vehicle .
- Always maintain the correct tightening
torque fo r the wheel bolts to reduce the
risk of a wheel loss. If the tigh teni ng tor­
que of the wheel bolts is too low, they
can loosen and come out when the vehi­
cle is moving . If the tightening torque is
too high, the whee l bolts and threads
can be damaged and the wheel ca n be­
come loose .
(D Note
The specified torque for the wheel bo lts is
90 ft lb (120 Nm) w ith a tolerance of
± 7,4 ft lb(± 10 Nm). Torque whee l bolts
diagonally. After changing a wheel, the
torque must be checked as soon as possi­
b le with a torque wrench -prefe rably by an
author ized Audi dealer or qualified wo rk­
shop.
Low aspect ratio tires
Your Audi is factory-equipped with low aspect
ratio tires . These tires have been thorough ly
tested and been selected spec ifically for your
model for the ir superb performance, road feel
Tire s an d wheel s 263
and handling under a variety o f driving condi ­
tions. Ask your authorized A udi dealer for
more details .
T he low aspec t ratio of these tires is ind icate d
by a numera l of
55 or le ss in the tire's size
designation. The numera l represents the ratio
of the t ire's sidewa ll height in relation to its
tread width expressed in percentage.
Conven­
tiona l tires have a he ight/w idth rat io of 60 or
more .
The performance of low-a spect-ratio tire s is
particularl y sens it iv e to improper inflation
pressure. It is therefore important that low
a spect ratio tir es are inflated to the specified
pre ssure and that the inflation pr essure i s
regularly checked and ma intain ed . Tire pr es­
s ure s should be checked at lea st on ce a
month and alway s bef ore a long trip
~ page 245 , Checking tire pressure .
A Word about Low Aspect Ratio and High
Performance Ti res
Hig h pe rformance tires are des igned for bet­
ter performance and handling in warm cli­
mates. When driving in cold, snowy or icy
weather, you sho uld equ ip your vehicle w it h
four all-season or winter tires, which
offer
better traction under those condit ions. We
suggest you use the Audi recommended win­
te r or a ll-season tires specified for you r Audi.
High performance tires a lso have a lower as ­
pect ratio that aids performance and han­
dling . Driving over rough or damaged road
surfaces, as well as debr is, cu rbs and other
obstacles can cause serious damage to
whee ls, tires, vehicle body, and suspens ion
parts . B e carefu l to avo id road hazards and re­
du ce your speed , espec ia lly if your vehicle is
equipped wi th low prof ile tires .
Please a lso remember when making your se­
lection that, wh ile these tires deliver respon­
s ive handling, t hey m ay ride less comfo rtably
and make more noise than o thers . Finally,
these tires may wear more quickly than other
c h oices.
IJJ>
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264 Tire s and wheel s
It is important that the inflation pressu re is
regularly checked and maintained at recom­
mended levels .
F or more informat ion p lease ask your A udi
deale r for more details .
What you can do to avoid tire and rim
damage
Low aspect ratio t ires can be damaged more
easi ly by impact with potho les, curbs, gu llies
or ridges on the road, part icularly if the t ire is
underinflated .
I n o rder to m inim ize the o ccu rrence of impact
damage to the tires of your vehicle, we recom­
mend that you observe the following precau­
tions:
- Always mainta in recommended inflat ion
pressures. Check your tire pressure every
2,000 miles (3,000 km) and add air if neces­
sary .
- Drive carefu lly on roads with potholes, deep
gullies or ridges. The impact from driving
thro ugh or over such obstacles can damage
your t ires. Impact with a curb may also
cause damage to your tires.
- After any impact, immediately inspect your
t ires or have them inspected by the neares t
authorized Aud i dealer . Replace a damaged
t ire as soon as possible .
- Inspect your t ires every 2,000 miles (3,000
km) for damage and wear . Damage is not al­
ways easy to see . Damage can lead to loss of
air and unde rinflat ion, wh ich could eventu­
ally cause t ire fail ure.
If you be lieve that a
t ire may have been damaged, replace the
tire as soon as possible.
- T hese tires may wea r more quick ly than oth­
ers.
- Please a lso remember that, whi le these t ires
deliver respons ive handling, they may ride
less comfortably and make mo re noise than
other c hoices.
Reduced performance in winter /cold
s eason condition s
All tires are designed for certain pu rposes .
The low aspect ratio, u ltra hig h performance t
ir es or iginally insta lled on yo ur vehicle a re in ­
tended for maximum dry and wet road per­
formance and handling . They are not suitable
for cold, snowy or icy weather conditions. If
you drive under those c ircumstances, you
shou ld equ ip your vehicle w ith all -season or
winter tires, which offer bette r traction unde r
those conditions . We suggest you use the rec­
ommended snow o r all-season t ires specified
for yo ur vehicle , or thei r equivalent .
Refer to~ page
261 for more detailed infor­
mation regard ing winter tires .
Tire pressure
monitoring system
ill General notes
E ach tire, including the spare ( if provided),
shou ld be checked monthly wh en co ld and in­
flated to t he inflat io n pressure recommended
by the veh icle man ufact urer on t he veh icle
placard or tire inf lation pressure labe l. (If your
vehicle has tires of a different size than the
size indicated on the vehicle placard or tire in ­
flat ion pressure labe l, you should determine
the proper t ire inflation press ure for those
t i res).
As an added safety feature, your ve hicle has
been equipped with a tire pressure monitoring
system (TPMS) that illum inates a low tire
pressure tell tale when one or more of your
t ires is s ignificantly under-inflated . According­
ly, when the low tire pressure telltale illumi­
nates, you shou ld stop and check you r tires as
soon as possib le, and inflate them to the
proper p ress ure. Driving on a sig nifican tly u n­
der -inflated t ire causes the tire to overhea t
and can lead to tire fa ilure . Under-inflation al­
so reduces fuel eff iciency and tire tread life,
and may affect the vehicle's hand ling and
stopp ing ability.
Please note that the TPMS is not a substit ute
for proper tire maintenance, and it is the driv­
er 's respons ibility to maintain correct tire
pressure, even if under-inflation has not

304 Index
------------------------------------
With button . . . . . . . . . . . . . . . . . . . . . . . 77
With key ... ... .......... .. .. .... .. 74
Steering
Elect rom echan ical steering . . . . . . .
193, 0
Indicator light . . . . . . . . . . . . . . . . . . . . . 21
Lockin g steering (ignition key) .... .. .. 76
Locking the steering (button) ....... . . 78
Locking (mechanical ignition lock) ... . . 74
also refer to Electromechan ica l steer-
ing .. .. .. .. ........... .......... .
193
Steering wheel
adjusting . .... .......... .. .. .... ..
74
Buttons ..... .. .......... .. .. .... .. 28
Multifunction steering wheel ... ...... 27
Shift paddles (automatic transmission) 114
Steps for determining correct load limit . 250
Stopping (engine)
with button . . . . . . . . . . . . . . . . . . . . . . .
78
with key ..... .............. ..... .. 76
Storage compartments . . . . . . . . . . . 61, 62
Storage hooks . . . . . . . . . . . . . . . . . . . . . . . 66
S tronic transmission
refer to Automatic transmission . ..... 109
Subwoofer ... ................ ... ... 269
Sun visors . . . . . . . . . . . . . . . . . . . . . . . . . .
50
Switching daytime runn ing ligh ts on and
off ................................ 49
Switching the ign ition on/off (with key) .. 74
Switch the ig nition on/off (with key) . .... 74
Symbo ls
refer to Indicator lights ......... ..... 14
System indicator light ( MIL) . . . . . . . 23, 30
T
Tachometer..................... 10 , 11
TOI clean diesel
refertoAdBlue ....................
215
Technical Data ...................... 286
Technical modifications ....... .. .. ... 291
Temperature display
Coolant .. .. ................ ... .. ..
10
Outside temperature ................ 11
Tether anchors . . . . . . . . . . . . . . . . . . . . . 187
Tether strap .. .. .......... .. .. .... . 187
The first 1,000 miles (1,500 km) and after-
wards ... .. .... .............. ......
197
Tie-downs . . . . . . . . . . . . . . . . . . . . . 65, 132
Tips for the environment
Saving fu el .... .. .... ......... .....
63
tip tron ic (a utomatic transm ission) ..... 114
T ire pressure .... .. .. ........... .. .. 245
T ire pressure monitoring system ....... 264
Tires .............................. 233
Serv ice life .... .. ................ . 252
Speed rating letter code ............ 257
Tire manufacturing date ............ 256
Tire pressure monitoring system ... .. 265
Ti re specifications ................. 256
Tread depth . ................. .... 252
Unif orm tire quality grading ......... 260
Winter tires ..... ... .......... .. .. 261
T ires and vehicle load limits ...... ... .. 249
Tires and wheels
Checking t ire pressure .......... .. ..
245
Co ld tire inflation pressure .......... 240
Dimensions .. .. .................. . 254
General notes .. .................. . 233
Glossary of tire and loading terminolo-
gy ..............................
235
Low a spect ratio tires ............... 263
New tires and wheels ............... 254
Replacing ..... .. .. ........... .. .. 255
Snow chains ..... .. ........... .. .. 262
Tires and veh icle load limits ......... 249
Wheel bolts . .. .. .......... ....... 262
Winter tires ..... .............. ... 261
Tire service life .... .. ........... .. .. 252
Tool kit ....... ................... . 268
Torn or frayed safety belts ............ 138
Towing
To w t ruck procedures ......... .. .. ..
282
Towing loop ....................... . 283
TPMS (tire pressure monitoring system) . 265
Trai le r towing . .. .. .............. ... 202
Operating instruct ions .......... .. .. 202
Technical requirements . . . . . . . . 202, 203
Trai ler towing tips . ............ .. .. 203
Transmission malfunction (indicator
light ) .............................
115
Transport Canada ................... 134
Travel mode . . . . . . . . . . . . . . . . . . . . . . . . 49
Tread Wear Indicator (TWI) ........... 252

M N
0 > co ,...., \!) er,
M er, ,....,
Trunk
refer to Luggage compartment . . . . . . . . 64
Turn signa ls .. ................. .. .... 48
Indicator light . . . . . . . . . . . . . . . . . . . . . 26
u
ULSD No . 2 (Diesel fuel) .......... ... . 2 11
Unfasten ing safety be lts .... .. .. .. .. . 140
Unid irect iona l tires ......... .. .. .. .. . 234
Uniform t ire quality grading ...... ... . 260
Unlocking/ locking
by remote contro l ........ .. .. .. .. ..
37
with the central locking switch .. .. .. .. 39
with the convenience key . . . . . . . . . . . . . 38
with the door lock . . . . . . . . . . . . . . . . . . 39
V
Vanity mirror . ............. .... .. .... 50
Vehicle
Care/cleaning ... .. .... ... .. .. .. ...
205
Dimensions ... .... .... ... .. .. .. .. .
Out of serv ice ............ .... .. .. .
Vehicle con trol mod ules ..... .. .. .. .. .
Vehicle ident ificat io n labe l ... .. .. .. .. .
Vehicle Identification N umber (VIN) ... . 287
199
195
286
286
Vehicle jack . . . . . . . . . . . . . . . . . . . 268, 272
Vehicle key .. ............. .... .. .... 35
Vehicle literature . . . . . . . . . . . . . . . . . . . . . 5
Vehicle tool kit . .............. .... ..
268
w
War ning/ indicator lights
System indicator light (MIL) . . . . . . . . . .
23
War ning/Indicator lights
A irbag system . . . . . . . . . . . . . . .
156, 157
PASSENGER AIR BAG OFF .. .. .. .. .. . 157
War ning ligh ts
refer to Indicator lights . ... .. .. .. .... 1 4
War ranty coverages .. ...... .. .. .. .. . 289
Washer f luid level (indicator light) .. .. .. 25
Washer reservoir .......... .. .. .. .. . 23 2
Washing matte finish pa int .. .. .. .. .. . 205
Wear indicator ..... .... ... .. .. .. .. . 252
Weights . .. .. .... ......... .... .. .. . 286
Inde x 305
What happens if yo u wear your safety belt
too loose? . ... .. .... . ... ...... ... ..
139
Wha t happe ns to unbe lted occupants? .. 136
What impairs driving safety? ...... .... 126
Wha t shou ld I do after changing a
whee l? ... .. .. .... .. . .. .. ..... ... ..
247
What shou ld I do after replac ing whee ls? 247
Whee l bolts
Torque .... .. .. .. .... .............
262
Whee ls . ... .. .. .... . ... ...... ... .. 233
All wheel d rive ...... .. .. ..... ... .. 193
Checking t ire press ure ... .... ... .. .. 245
Cleaning .. .. .. .. .. .. ........... .. 206
Co ld tire inflation pressure .......... 240
General notes .. ... ...... ......... . 233
Glossary of tire and loading term inolo-
gy .......... ... .. ...............
235
New t ires a nd wheels ............... 2 54
T ires and veh icle load limits ..... .. .. 249
Wheel wre nch . .. .. .. ... ....... .... . 268
When must a safety be lt be replaced? . . 138
When must the a irbag system b e inspect-
ed? ........ .. .. .. .................
156
When should I adjust the t ire pressures? 247
When should I ch ec k the ti re p ress ures? . 247
Where are lower ancho rages located? ... 185
Where can I find the t ire pressures fo r my
car? ..... .. .. .. .. .. .... ...........
245
Why sa fety be lts? .... . .. .. ..... ... .. 136
Windows
Cleaning/removing ice . ...... ... ....
207
Windshie ld
cleaning .. .. .. .. .. . .............. .
50
defrosting (automatic climate control
system) ... .. .. .. .. . .. .... .... .. .. .
71
defrosting (manua l climate control sys-
tem) ..... .. .. .. .... ............. .
69
also refer to Windshie ld ........ .... . 50
Windshie ld washer system . . . . . . . . . . . . 50
Rese rvoir capacity .. ... ....... .... . 288
Washe r reservo ir .. ............... . 232
Windshield wipers
Cleaning w iper blades .......... .... .
51
Fold ing up .. .. .. .. . .. .... .... .. .. . 51
Ind icator lig ht . ......... ......... .. 25
Replacing windsh ield wiper b lades ..... 51
Swi tching on a nd off ........... .. .. . 5 0
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